[PATCH] lightnvm: add check after mempool allocation

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Add missing check after mempool allocation.

Signed-off-by: Javier Gonzalez <javier@xxxxxxxxxxxx>
---
 drivers/lightnvm/rrpc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c
index a1e7488..f4bc986 100644
--- a/drivers/lightnvm/rrpc.c
+++ b/drivers/lightnvm/rrpc.c
@@ -287,6 +287,8 @@ static int rrpc_move_valid_pages(struct rrpc *rrpc, struct rrpc_block *rblk)
 	}
 
 	page = mempool_alloc(rrpc->page_pool, GFP_NOIO);
+	if (!page)
+		return -ENOMEM;
 
 	while ((slot = find_first_zero_bit(rblk->invalid_pages,
 					    nr_pgs_per_blk)) < nr_pgs_per_blk) {
-- 
2.1.4

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